A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6150-00-461-3650
NSN 6105-00-225-8745
NSN 5965-01-122-2750
NSN 5996-00-113-7341
NSN 5910-00-028-1308
NSN 5930-01-644-0321
NSN 5895-01-479-0458
NSN 6110-01-292-7823
NSN 5960-01-381-2478
NSN 6150-01-109-9862
NSN 5925-00-435-8391
NSN 5975-01-394-7778